Maths Dictionary Natural Number Mathematical Definition In mathematics, natural numbers are the set of numbers we use for counting and ordering. They start from 1, 2, 3, 4, … and continue without end. Some definitions also include 0 as a natural number, depending on the context. Natural numbers are important because they are the foundation […]
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Maths Dictionary m (metre) The letter m is the abbreviation for metre, the standard unit of length in the metric system. Examples: Key Idea: Metres are used to measure how long or tall something is.
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Maths Dictionary Lateral Surface Area The lateral surface area of a 3D shape is the total area of all the sides, but not including the top and bottom (the bases). Key Idea: Lateral surface area measures just the “side surfaces” of a solid shape. Example:If you peel the label off a tin can, the paper
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Maths Dictionary Key (in Mathematics) In mathematics, a key is a small box or legend that explains the meaning of symbols, colors, or patterns used in a chart, graph, or map. It helps readers understand the information being shown. For example, in a bar chart showing favorite fruits, the key might show that the color
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Maths Dictionary The Maths Definition of Jump Strategy In mathematics, particularly in primary education, the jump strategy is a method used to solve addition and subtraction problems by breaking numbers into manageable parts. It is often taught on a number line, where the learner “jumps” in steps to reach the answer. For example, to calculate
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Maths Dictionary Icosahedron An icosahedron is a 3D solid shape (polyhedron) that has 20 triangular faces, 30 edges, and 12 vertices (corners). All the faces are equilateral triangles in a regular icosahedron. It is one of the five Platonic solids, which are special shapes where all faces, edges, and angles are the same. The name
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Maths Dictionary ha (hectare) The letters ha are the abbreviation for hectare, a unit of area used to measure large pieces of land. Key Idea: Use ha when talking about very big areas of land.
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g (gram) The letter g is the abbreviation for gram, a unit of mass in the metric system. Key Idea: Use g to show weight or mass in everyday maths and science.
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Maths Dictionary Face In geometry, a face is a flat surface that forms part of the boundary of a solid (3D shape). Faces are usually 2D shapes such as squares, rectangles, or triangles. For example: Key Idea: Faces are the “flat sides” of 3D shapes.
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Maths Dictionary Edge Definition:An edge is the straight line where two faces of a 3D shape meet. Examples: In maths:Edges help describe and count the properties of solid shapes, along with faces and vertices (corners). Fun fact:If you run your finger along the side of a box, you are tracing an edge!
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